I replaced the screen and even used the original home button, I tried to use the Touch ID but it didn't work it kept on saying Touch ID failed. I literally tried everything that everyone was saying to do but none of them worked. It wasn't untill I updated my phone that the Touch ID started working again, really strange not even DFU mode or restoring the phone worked but for some reason updating the phone did. It seems that you have to try every solution in order to find which one that will be effective for your phone.